/* ===========================
   Global Variables
   =========================== */
:root {
    /* Colors */
    --terminal-green: #00ff41;
    --accent-cyan: #00d9ff;
    --accent-orange: #ff6b35;
    --bg-dark: #0a0e1a;
    --bg-darker: #050810;
    --bg-card: #0f1419;
    --text-primary: #e8e8e8;
    --text-secondary: #9ca3af;
    --border-color: rgba(0, 255, 65, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glow-green: 0 0 20px rgba(0, 255, 65, 0.5);
    --glow-cyan: 0 0 20px rgba(0, 217, 255, 0.5);
}

/* ===========================
   Reset & Base Styles
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ===========================
   Matrix Canvas Background
   =========================== */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.15;
    pointer-events: none;
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 3vw, 2rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--terminal-green);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--accent-cyan);
}

/* ===========================
   Layout Components
   =========================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: clamp(2rem, 4vw, 3.5rem);
}

.gradient-text {
    background: linear-gradient(135deg, var(--terminal-green), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Navigation
   =========================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--terminal-green);
    transition: var(--transition-fast);
}

.logo:hover {
    transform: translateY(-2px);
    filter: drop-shadow(var(--glow-green));
}

.logo svg {
    width: 32px;
    height: 32px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--terminal-green);
    transform: translateX(-50%);
    transition: var(--transition-fast);
}

.nav-menu a:hover::before {
    width: 80%;
}

.nav-menu a:hover {
    color: var(--terminal-green);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    list-style: none;
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
}

.dropdown-menu a::before {
    display: none;
}

.dropdown-menu a:hover {
    background: rgba(0, 255, 65, 0.1);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--terminal-green);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: 2px solid;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--terminal-green);
    border-color: var(--terminal-green);
    color: var(--bg-dark);
}

.btn-primary:hover {
    box-shadow: var(--glow-green);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border-color: var(--terminal-green);
    color: var(--terminal-green);
}

.btn-secondary:hover {
    background: rgba(0, 255, 65, 0.1);
    transform: translateY(-2px);
}

/* ===========================
   Cards
   =========================== */
.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-normal);
    overflow: hidden;
    cursor: pointer;
    display: block;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 65, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

.service-card:hover .card-glow {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--terminal-green);
    box-shadow: 0 8px 32px rgba(0, 255, 65, 0.2);
}

.card-content {
    position: relative;
    z-index: 1;
}

.service-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.card-arrow {
    font-size: 1.5rem;
    color: var(--terminal-green);
    transition: var(--transition-fast);
}

.service-card:hover .card-arrow {
    transform: translateX(8px);
}

/* ===========================
   Footer
   =========================== */
.main-footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--terminal-green);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--terminal-green);
    padding-left: 4px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--terminal-green);
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ===========================
   Cursor Glow Effect
   =========================== */
.cursor-glow {
    position: fixed;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--terminal-green) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    opacity: 0.5;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-dark);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition-normal);
        border-right: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        border: none;
        box-shadow: none;
        margin-top: 0.5rem;
    }
}

/* ===========================
   Utility Classes
   =========================== */
.hidden {
    opacity: 0;
    visibility: hidden;
}

.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }